Window guard



June 29, 19 23. M McDQWELL 2,323,097

WINDOW GUARD Filed Nov. 23, 1942 s Sheets-Sheet 1 III I Inventor Ema M. S. MCDOWELL WINDOW GUARD June 29, 1943.

Filed Nov. 23, 1942 5 Sheets-Sheet 3 Inventor Patented June 29 1943 UNITED STATES 1 PATENT OFFICE wmnow GUARD 7 Miles S. McDowell, Lexington, Ky. Application November 23, 1942,, Serial No. 466,646

4 Claims.

The present invention relates to new and useon improvements in window guards, and has for one of its important objects to provide, in a man ner as hereinafter set forth, a device of this character which is also adapted to function as a Venetian blind, said device including ladder supported tiltable slats which raised and lowered.

Another very important object of the invention is to provide a window guard of the aforementioned character comprising novel means for positively locking the slats in lowered position;

Other objects of the invention are toprovide a windowguard of the character described whichwiil be comparatively simple in construction,

strong, durable, highly efficient and reliable in use, compact, inconspicuous and which may be manufactured and installed at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a view in front elevation of a window guard constructed in accordance with the present invention, showing the deviceinstalled.

Figure 2 is, -a vertical sectional view, taken substantially on the line 2-2 of Figure 1.

Figure 3 is a view in vertical section through one sideportion of the device, taken at right angles to Figure 2.

Figure 4 is a view in horizontal section through thelower portion of the device with the upper 35 .whiehhasbeeniilustratedeompris'esasubstanwhhnisldaptedtbbemountedinaeonventional e wimluwframe2inwardlyottheusuaisasiries3. Thehamelindudesasuhstantiallyflatmetai lichous'lnglwiiichismoimtedonthestooliof thewindow. mfromtheendportiomofthe are adapted to be shaped'side bars 5. The frame I further includes a top bar 7.

Mounted in the side portions of the frame I are pairs of vertical guides 8 which are spaced from each other in a manner to define slots 9. Journaled in suitable bearings l0 which are provided therefor in the upper portion of the frame I is a rockable tilt bar ll. Tape ladders i2 are suspended from the bar II. A bottom bar I3 is 10 secured to the lower ends of the ladders I2.

- Slats I4 are mounted, in the ladders I2;

Projecting longitudinally from at least one of the slats ll, also from the bottom bar' I3, are shafts I5 which are operable in the slots 9. At

5 inwardly spaced points from their outer ends the shafts I5 have fixed thereon collars I6. Projecting in opposite directions from the collars iii are spindles l1. Rollers I8 are journaled on the spindles I1 and travel on the outer sides ofthe guides 8. Any suitable means may be provided for tilting and raising or lowering the slats H, et Q cet era.

Also journaled in the side portions of the frame I, outwardly of the guides 8, are verticalshafts I 9. The shafts is have fixed thereon pairs of vertically spaced, arcuate fingers 20 for receiving the outer end portions of the shafts l5- therebetween. Arms 2| are fixed on the lower end portions of the shafts l9.

Pivotally mounted at 22 for swinging movement in a'horizontal plane in the housing 4 at'an intermediate point is a manually operable lever .23. A longitudinal slot 24 in the front of the housing 4 accommodates the lever 23. The lever 23 includes a hinged handle 25 on its outer end.

The inner end of the-lever 23 is connected to the arms]! for rocking the vertical shafts l9 through the medium of rods 26, said rods including turnbuckles 21 for adjustment. I 7

Fixed on the inner portion of the lever 23 is a hook 28. The hook 28 is engageable with the bolt 29 of a key operated lock SI in the housing 4 for securing the fingers 20 in operative position,

as illustrated to advantage in Figure 5 of the:

It is thought that the operation of the device extending at right angles from the housing 4, as seen in Figure! of the drawings, the fingers 2| areoutofthepathoftheshaftsliandflieslafs llmaybefreelyraisedorioweredasdesiremsaid' shafts l5 travelingintheslots l. However,when

housing I is a pair of substantially channelitisdesiredtosecuretheslatsllinloweredpoashafts I 5, in which position said fingers constitute positive stops for said shafts. When the hand lever 23 is swung to this position, it is locked by the engagement of the bolt 29 behind the hook, 28. The locking of the slats M in lowered position does not interfere with the tilting of said slats. When it is desired to raise the slats I4, a. key, as at 3|, is inserted in the lock 30 for retracting the bolt 29 thereby freeing the lever 231 which may now be returned to the position of Figure 4 for swinging the fingers 20 to inoperative position. The slat or slats H which carry the shafts l5 are comparatively thick and strong.

It is believed that the many advantages of a window guard constructed in accordance with the present invention will'be readily understood, and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A window guard of the character described comprising a frame structure for mounting in a window frame, a Venetian blind unit mounted for raising and lowering in said frame structure, vertical guides in the frame structure, shafts on certain of the slats of the Venetian blind unit operable in said guides, and means engageable with said shafts for securing the Venetian blind unit in lowered position.

2. A window guard of the character described comprising a frame structure for mounting in a window frame, a Venetian blind unit mounted for raising and lowering in said frame structure, vertical guides in the frame structure, shafts on certain of the slats of the Venetian blind unit operable in said guides, and means engageable with said shafts for securing the Venetian blind unit in lowered position, said means including vertical shafts journaled in the frame structure,

stop fingers on the second-named shafts engageable with the first-named shafts, and means for rocking the second-named shafts for swinging the in the frame structure, fingers on the secondnamed shafts engageable with the first-named shafts for releasably securingthe blind unit in lowered position, and manually operable means in the housing for rocking the second-named shafts in unison for swinging the fingers to operative or inoperative position.

4. A window guard of the character described comprising a frame structure for mounting in a window frame, said frame structure comprising a lower portion including a horizontal housing, pairs of vertical guides mounted in the frame structure, a Venetian blind unit mounted for raising and lowering in the frame structure, shafts projecting longitudinally from the ends of certain of the slats of the blind unit and operable between the pairs of guides, rollers on said shafts operable on the guides, rockable shafts journaled vertically in the frame structure, fingers on the secondnamed shafts engageable with the first-named shafts for releasably securing the blind unit in lowered position, and manually operable means in the housing for rocking the second-named shafts in unison for swinging the fingers to operative or inoperativeposition, said means including arms fixed on the lower end portions of the second-named shafts, a hand lever pivotally mounted in the housing, rods operatively connecting said hand lever to the arms, and means in the housing for locking the lever for securing the fingers in operative position.

NIILES S. MCDOWELL. 

